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| Title: |
Study of the mechanical behavior of a 2-D carbon-carbon composite
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| Author(s): |
Avery, W. B.; Herakovich, C. T.
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| Abstract: |
The out-of-plane fracture of a 2-D carbon-carbon composite was observed and characterized to gain an understanding of the factors influencing the stress distribution in such a laminate. Finite element analyses of a two-ply carbon-carbon composite under in-plane, out-of-plane, and thermal loading were performed. Under in-plane loading all components of stress were strong functions of geometry. Additionally, large thermal stresses were predicted. Out-of-plane tensile tests revealed that failure was interlaminar, and that cracks propagated along the fiber-matrix interface. An elasticity solution was utilized to analyze an orthotropic fiber in an isotropic matrix under uniform thermal load. The analysis reveals that the stress distributions in a transversely orthotropic fiber are radically different than those predicted assuming the fiber to be transversely isotropic.
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| NASA Center: |
NASA (non Center Specific)
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| Publication Date: |
Aug 1, 1987
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| Document Source: |
CASI |
| Online Source: |
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| Document ID: |
19880009265
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| Accession ID: |
88N18649
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| Publication Information: |
Number of Pages = 296 |
| Report Number: |
CCMS-87-13; NAS 1.26:182594; NASA-CR-182594; PB88-140819; VPI-E-87-15
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| Contract-Grant-Task Number: |
NAG1-343 |
| Price Code: |
A13 |
| Keywords: |
CARBON-CARBON COMPOSITES; FAILURE ANALYSIS; FINITE ELEMENT METHOD; FRACTURE MECHANICS; LOADS (FORCES); MECHANICAL PROPERTIES; STRUCTURAL ANALYSIS; THERMAL STRESSES; CRACK PROPAGATION; ELASTIC PROPERTIES; FIBER-MATRIX INTERFACES; FIBERS; TENSILE TESTS;
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| Accessibility: |
Unclassified; No Copyright; Unlimited; Publicly available; Topical Interim Report No. 66 |
| Updated/Added to NTRS: |
2008-11-10 |
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